Finding the Fourth Proportional to 343,342.86, 514,915.88 and 103,479.99
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Solution
The fourth proportional to 343,342.86, 514,915.88 and 103,479.99 is: 155,190.32
Step by Step Solution
- Step 1: Write the proportion equation
343,342.86 : 514,915.88 = 103,479.99 : x - Step 2: Convert to fraction form
343,342.86/514,915.88 = 103,479.99/x - Step 3: Cross multiply
343,342.86x = 514,915.88 × 103,479.99 - Step 4: Simplify right side
343,342.86x = 53,283,489,595.84 - Step 5: Solve for x
x = 53,283,489,595.84/343,342.86 - Step 6: Final answer
x = 155,190.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.